<!--
 * @Description: 其他 
 * @Author: charles
 * @Date: 2021-08-12 09:28:57
 * @LastEditors: charles
 * @LastEditTime: 2021-08-12 09:42:46
-->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>其他</title>
  <style>
    .one {
      cursor: pointer;
    }
    .two ,.three{
      width: 100px;
      height: 100px;
      margin-top: 10px;
    }
    .two {
      background-color: lightskyblue;
      /* visibility: hidden; */
      display: block;
    }
    .three {
      background-color: limegreen;
      opacity: 0;
    }
    .four {
      height: 20px;
      background-color: mediumpurple;
    }
    .five {
      background-color: mediumseagreen;
      color: #f3f3f3;
    }
    .five > span {
      display: inline-block; 
    }
    .five > span:nth-child(1) {
      height: 100px;
      background-color: #fff;
    }
  </style>
</head>
<body>
  <div class="one">hello world</div>
  <div class="two"></div>
  <div class="three"></div>
  <div class="four"></div>

  <div class="five">
    <span>one</span>
    <span>two</span>
    <span>three</span>
  </div>

</body>
</html>